Question: When did Tomsk start being the administrative territorial entity of the Tomsk Governorate?
Paraphrase: On what date did Tomsk become the administrative territorial entity of the Tomsk Governorate?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q976 p:P131 ?s . ?s ps:P131 wd:Q1378406 . ?s pq:P580 ?value}